Bey Ertugrul of Ankara

Bey Ertugrul of Ankara (1191-1281) was the leader of the Kayi tribe and the father of Osman, the founder of the Ottoman Empire.

Biography
Ertugrul was born in 1191,m was the leader of the Kayi clan of Sunni Muslim Turks, inheriting the leadership in 1230. He led an army of Turkmens from Merv to assist the Sultanate of Rum against the Byzantine Empire in Anatolia, and in 1231 he conquered Sogut. Ertugrul is considered an Islamic warrior, and he died in 1281 in Sogut, where his son Osman was born and would build the Ottoman Empire from.